Yes, They WILL fit. . I had Nitto 325-60-18's on Diamo 8 Karat wheels on my truck for a while. Those wheels stuck out a pretty good way. . I would get a very, very slight rub at full lock, but I could have easily solved that with some minor trimming. . Also, the 315's are an inch and a half bigger than the 325-60's. . The 65's are a tad bigger than the 315's.